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-rw-r--r--meta/classes/kernel-module-split.bbclass185
1 files changed, 185 insertions, 0 deletions
diff --git a/meta/classes/kernel-module-split.bbclass b/meta/classes/kernel-module-split.bbclass
new file mode 100644
index 0000000000..aa0c499b79
--- /dev/null
+++ b/meta/classes/kernel-module-split.bbclass
@@ -0,0 +1,185 @@
1pkg_postinst_modules () {
2if [ -z "$D" ]; then
3 depmod -a ${KERNEL_VERSION}
4else
5 depmodwrapper -a -b $D ${KERNEL_VERSION}
6fi
7}
8
9pkg_postrm_modules () {
10if [ -z "$D" ]; then
11 depmod -a ${KERNEL_VERSION}
12else
13 depmodwrapper -a -b $D ${KERNEL_VERSION}
14fi
15}
16
17autoload_postinst_fragment() {
18if [ x"$D" = "x" ]; then
19 modprobe %s || true
20fi
21}
22
23do_install_append() {
24 install -d ${D}${sysconfdir}/modules-load.d/ ${D}${sysconfdir}/modprobe.d/
25}
26
27PACKAGESPLITFUNCS_prepend = "split_kernel_module_packages "
28
29KERNEL_MODULES_META_PACKAGE ?= "kernel-modules"
30
31python split_kernel_module_packages () {
32 import re
33
34 modinfoexp = re.compile("([^=]+)=(.*)")
35 kerverrexp = re.compile('^(.*-hh.*)[\.\+].*$')
36 depmodpat0 = re.compile("^(.*\.k?o):..*$")
37 depmodpat1 = re.compile("^(.*\.k?o):\s*(.*\.k?o)\s*$")
38 depmodpat2 = re.compile("^(.*\.k?o):\s*(.*\.k?o)\s*\\\$")
39 depmodpat3 = re.compile("^\t(.*\.k?o)\s*\\\$")
40 depmodpat4 = re.compile("^\t(.*\.k?o)\s*$")
41
42 def extract_modinfo(file):
43 import tempfile, subprocess
44 tempfile.tempdir = d.getVar("WORKDIR", True)
45 tf = tempfile.mkstemp()
46 tmpfile = tf[1]
47 cmd = "%sobjcopy -j .modinfo -O binary %s %s" % (d.getVar("HOST_PREFIX", True) or "", file, tmpfile)
48 subprocess.call(cmd, shell=True)
49 f = open(tmpfile)
50 l = f.read().split("\000")
51 f.close()
52 os.close(tf[0])
53 os.unlink(tmpfile)
54 vals = {}
55 for i in l:
56 m = modinfoexp.match(i)
57 if not m:
58 continue
59 vals[m.group(1)] = m.group(2)
60 return vals
61
62 def parse_depmod():
63
64 dvar = d.getVar('PKGD', True)
65
66 kernelver = d.getVar('KERNEL_VERSION', True)
67 kernelver_stripped = kernelver
68 m = kerverrexp.match(kernelver)
69 if m:
70 kernelver_stripped = m.group(1)
71 staging_kernel_dir = d.getVar("STAGING_KERNEL_DIR", True)
72 system_map_file = "%s/boot/System.map-%s" % (dvar, kernelver)
73 if not os.path.exists(system_map_file):
74 system_map_file = "%s/System.map-%s" % (staging_kernel_dir, kernelver)
75 if not os.path.exists(system_map_file):
76 bb.fatal("System.map-%s does not exist in '%s/boot' nor STAGING_KERNEL_DIR '%s'" % (kernelver, dvar, staging_kernel_dir))
77
78 cmd = "depmod -n -a -b %s -F %s %s" % (dvar, system_map_file, kernelver_stripped)
79 f = os.popen(cmd, 'r')
80
81 deps = {}
82 line = f.readline()
83 while line:
84 if not depmodpat0.match(line):
85 line = f.readline()
86 continue
87 m1 = depmodpat1.match(line)
88 if m1:
89 deps[m1.group(1)] = m1.group(2).split()
90 else:
91 m2 = depmodpat2.match(line)
92 if m2:
93 deps[m2.group(1)] = m2.group(2).split()
94 line = f.readline()
95 m3 = depmodpat3.match(line)
96 while m3:
97 deps[m2.group(1)].extend(m3.group(1).split())
98 line = f.readline()
99 m3 = depmodpat3.match(line)
100 m4 = depmodpat4.match(line)
101 deps[m2.group(1)].extend(m4.group(1).split())
102 line = f.readline()
103 f.close()
104 return deps
105
106 def get_dependencies(file, pattern, format):
107 # file no longer includes PKGD
108 file = file.replace(d.getVar('PKGD', True) or '', '', 1)
109 # instead is prefixed with /lib/modules/${KERNEL_VERSION}
110 file = file.replace("/lib/modules/%s/" % d.getVar('KERNEL_VERSION', True) or '', '', 1)
111
112 if module_deps.has_key(file):
113 dependencies = []
114 for i in module_deps[file]:
115 m = re.match(pattern, os.path.basename(i))
116 if not m:
117 continue
118 on = legitimize_package_name(m.group(1))
119 dependency_pkg = format % on
120 dependencies.append(dependency_pkg)
121 return dependencies
122 return []
123
124 def frob_metadata(file, pkg, pattern, format, basename):
125 vals = extract_modinfo(file)
126
127 dvar = d.getVar('PKGD', True)
128
129 # If autoloading is requested, output /etc/modules-load.d/<name>.conf and append
130 # appropriate modprobe commands to the postinst
131 autoload = d.getVar('module_autoload_%s' % basename, True)
132 if autoload:
133 name = '%s/etc/modules-load.d/%s.conf' % (dvar, basename)
134 f = open(name, 'w')
135 for m in autoload.split():
136 f.write('%s\n' % m)
137 f.close()
138 postinst = d.getVar('pkg_postinst_%s' % pkg, True)
139 if not postinst:
140 bb.fatal("pkg_postinst_%s not defined" % pkg)
141 postinst += d.getVar('autoload_postinst_fragment', True) % autoload
142 d.setVar('pkg_postinst_%s' % pkg, postinst)
143
144 # Write out any modconf fragment
145 modconf = d.getVar('module_conf_%s' % basename, True)
146 if modconf:
147 name = '%s/etc/modprobe.d/%s.conf' % (dvar, basename)
148 f = open(name, 'w')
149 f.write("%s\n" % modconf)
150 f.close()
151
152 files = d.getVar('FILES_%s' % pkg, True)
153 files = "%s /etc/modules-load.d/%s.conf /etc/modprobe.d/%s.conf" % (files, basename, basename)
154 d.setVar('FILES_%s' % pkg, files)
155
156 if vals.has_key("description"):
157 old_desc = d.getVar('DESCRIPTION_' + pkg, True) or ""
158 d.setVar('DESCRIPTION_' + pkg, old_desc + "; " + vals["description"])
159
160 rdepends = bb.utils.explode_dep_versions2(d.getVar('RDEPENDS_' + pkg, True) or "")
161 for dep in get_dependencies(file, pattern, format):
162 if not dep in rdepends:
163 rdepends[dep] = []
164 d.setVar('RDEPENDS_' + pkg, bb.utils.join_deps(rdepends, commasep=False))
165
166 module_deps = parse_depmod()
167 module_regex = '^(.*)\.k?o$'
168 module_pattern = 'kernel-module-%s'
169
170 postinst = d.getVar('pkg_postinst_modules', True)
171 postrm = d.getVar('pkg_postrm_modules', True)
172
173 modules = do_split_packages(d, root='/lib/modules', file_regex=module_regex, output_pattern=module_pattern, description='%s kernel module', postinst=postinst, postrm=postrm, recursive=True, hook=frob_metadata, extra_depends='kernel-%s' % (d.getVar("KERNEL_VERSION", True)))
174 if modules:
175 metapkg = d.getVar('KERNEL_MODULES_META_PACKAGE', True)
176 d.appendVar('RDEPENDS_' + metapkg, ' '.join(modules))
177
178 # If modules-load.d and modprobe.d are empty at this point, remove them to
179 # avoid warnings. removedirs only raises an OSError if an empty
180 # directory cannot be removed.
181 dvar = d.getVar('PKGD', True)
182 for dir in ["%s/etc/modprobe.d" % (dvar), "%s/etc/modules-load.d" % (dvar), "%s/etc" % (dvar)]:
183 if len(os.listdir(dir)) == 0:
184 os.rmdir(dir)
185}